diff options
Diffstat (limited to 'gdb/ser-tcp.c')
| -rw-r--r-- | gdb/ser-tcp.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/gdb/ser-tcp.c b/gdb/ser-tcp.c deleted file mode 100644 index c6ae19d..0000000 --- a/gdb/ser-tcp.c +++ /dev/null @@ -1,231 +0,0 @@ -/* Serial interface for raw TCP connections on Un*x like systems - Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2001 - Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "defs.h" -#include "serial.h" -#include "ser-unix.h" - -#include <sys/types.h> - -#ifdef HAVE_SYS_FILIO_H -#include <sys/filio.h> /* For FIONBIO. */ -#endif -#ifdef HAVE_SYS_IOCTL_H -#include <sys/ioctl.h> /* For FIONBIO. */ -#endif - -#include <sys/time.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <sys/socket.h> -#include <netinet/tcp.h> - -#include <signal.h> -#include "gdb_string.h" - -static int net_open (struct serial *scb, const char *name); -static void net_close (struct serial *scb); -extern int (*ui_loop_hook) (int); -void _initialize_ser_tcp (void); - -/* seconds to wait for connect */ -#define TIMEOUT 15 -/* how many times per second to poll ui_loop_hook */ -#define POLL_INTERVAL 2 - -/* Open a tcp socket */ - -static int -net_open (struct serial *scb, const char *name) -{ - char *port_str, hostname[100]; - int n, port, tmp; - int use_udp; - struct hostent *hostent; - struct sockaddr_in sockaddr; - - use_udp = 0; - if (strncmp (name, "udp:", 4) == 0) - { - use_udp = 1; - name = name + 4; - } - else if (strncmp (name, "tcp:", 4) == 0) - name = name + 4; - - port_str = strchr (name, ':'); - - if (!port_str) - error ("net_open: No colon in host name!"); /* Shouldn't ever happen */ - - tmp = min (port_str - name, (int) sizeof hostname - 1); - strncpy (hostname, name, tmp); /* Don't want colon */ - hostname[tmp] = '\000'; /* Tie off host name */ - port = atoi (port_str + 1); - - /* default hostname is localhost */ - if (!hostname[0]) - strcpy (hostname, "localhost"); - - hostent = gethostbyname (hostname); - if (!hostent) - { - fprintf_unfiltered (gdb_stderr, "%s: unknown host\n", hostname); - errno = ENOENT; - return -1; - } - - if (use_udp) - scb->fd = socket (PF_INET, SOCK_DGRAM, 0); - else - scb->fd = socket (PF_INET, SOCK_STREAM, 0); - - if (scb->fd < 0) - return -1; - - sockaddr.sin_family = PF_INET; - sockaddr.sin_port = htons (port); - memcpy (&sockaddr.sin_addr.s_addr, hostent->h_addr, - sizeof (struct in_addr)); - - /* set socket nonblocking */ - tmp = 1; - ioctl (scb->fd, FIONBIO, &tmp); - - /* Use Non-blocking connect. connect() will return 0 if connected already. */ - n = connect (scb->fd, (struct sockaddr *) &sockaddr, sizeof (sockaddr)); - - if (n < 0 && errno != EINPROGRESS) - { - net_close (scb); - return -1; - } - - if (n) - { - /* looks like we need to wait for the connect */ - struct timeval t; - fd_set rset, wset; - int polls = 0; - FD_ZERO (&rset); - - do - { - /* While we wait for the connect to complete - poll the UI so it can update or the user can - interrupt. */ - if (ui_loop_hook) - { - if (ui_loop_hook (0)) - { - errno = EINTR; - net_close (scb); - return -1; - } - } - - FD_SET (scb->fd, &rset); - wset = rset; - t.tv_sec = 0; - t.tv_usec = 1000000 / POLL_INTERVAL; - - n = select (scb->fd + 1, &rset, &wset, NULL, &t); - polls++; - } - while (n == 0 && polls <= TIMEOUT * POLL_INTERVAL); - if (n < 0 || polls > TIMEOUT * POLL_INTERVAL) - { - if (polls > TIMEOUT * POLL_INTERVAL) - errno = ETIMEDOUT; - net_close (scb); - return -1; - } - } - - /* Got something. Is it an error? */ - { - int res, err, len; - len = sizeof(err); - res = getsockopt (scb->fd, SOL_SOCKET, SO_ERROR, &err, &len); - if (res < 0 || err) - { - if (err) - errno = err; - net_close (scb); - return -1; - } - } - - /* turn off nonblocking */ - tmp = 0; - ioctl (scb->fd, FIONBIO, &tmp); - - if (use_udp == 0) - { - /* Disable Nagle algorithm. Needed in some cases. */ - tmp = 1; - setsockopt (scb->fd, IPPROTO_TCP, TCP_NODELAY, - (char *)&tmp, sizeof (tmp)); - } - - /* If we don't do this, then GDB simply exits - when the remote side dies. */ - signal (SIGPIPE, SIG_IGN); - - return 0; -} - -static void -net_close (struct serial *scb) -{ - if (scb->fd < 0) - return; - - close (scb->fd); - scb->fd = -1; -} - -void -_initialize_ser_tcp (void) -{ - struct serial_ops *ops = XMALLOC (struct serial_ops); - memset (ops, sizeof (struct serial_ops), 0); - ops->name = "tcp"; - ops->next = 0; - ops->open = net_open; - ops->close = net_close; - ops->readchar = ser_unix_readchar; - ops->write = ser_unix_write; - ops->flush_output = ser_unix_nop_flush_output; - ops->flush_input = ser_unix_flush_input; - ops->send_break = ser_unix_nop_send_break; - ops->go_raw = ser_unix_nop_raw; - ops->get_tty_state = ser_unix_nop_get_tty_state; - ops->set_tty_state = ser_unix_nop_set_tty_state; - ops->print_tty_state = ser_unix_nop_print_tty_state; - ops->noflush_set_tty_state = ser_unix_nop_noflush_set_tty_state; - ops->setbaudrate = ser_unix_nop_setbaudrate; - ops->setstopbits = ser_unix_nop_setstopbits; - ops->drain_output = ser_unix_nop_drain_output; - ops->async = ser_unix_async; - serial_add_interface (ops); -} |